Is cisco 6900 phones are comaptible with call manager express

our customer want 6 esw switches which are used to cennect access points(linksys wap 400)and ip phones .they want to caonnect it into the distribution layer in there they are using 3750 12 s switchesesw will suite for this?how i sthe performance of t...

In my offiec i want to connect 8 accesspoints and 8 smart boad and 8 pcs to a switch the access points are cisco 1240g series and controlled by a wlan controller.this switch should be connected to a core switch 4507 using fiber.can i use these esw sw...